Page 1/18 Involvement of superior mesenteric vein and superior mesenteric artery is adverse prognostic factors in patients with localized pancreatic ductal adenocarcinoma before and after chemoradiotherapy comparing T category between American Joint Committee on Cancer (AJCC) and Japan Pancreas Society (JPS) Aoi Hayasaki (  a-hayasaki@med.mie-u.ac.jp ) Mie University School of Medicine Shugo Mizuno Mie University School of Medicine Motonori Nagata Mie University School of Medicine Benson Kaluba Mie University School of Medicine Koki Maeda Mie University School of Medicine Toru Shinkai Mie University School of Medicine Takahiro Ito Mie University School of Medicine Kazuyuki Gyoten Mie University School of Medicine Takehiro Fujii Mie University School of Medicine Yusuke Iizawa Mie University School of Medicine Akihiro Tanemura Mie University School of Medicine Yasuhiro Murata Mie University School of Medicine Naohisa Kuriyama